X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=include%2Fvlc_stream.h;h=b2a866614934db3c2a20a5bd296406a4d0feb95d;hb=6ee1e193fd896ab9a4729fde14f009d9ce629815;hp=fdaa37f2dd8b7228278dd5c9a2fd3a953e554286;hpb=4ff2a9a24fc18d489e6b3c1203470ba5874df25b;p=vlc diff --git a/include/vlc_stream.h b/include/vlc_stream.h index fdaa37f2dd..b2a8666149 100644 --- a/include/vlc_stream.h +++ b/include/vlc_stream.h @@ -1,5 +1,5 @@ /***************************************************************************** - * vlc_stream.h + * vlc_stream.h: Stream (between access and demux) descriptor and methods ***************************************************************************** * Copyright (C) 1999-2004 the VideoLAN team * $Id$ @@ -18,12 +18,18 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA. + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. *****************************************************************************/ +#if !defined( __LIBVLC__ ) + #error You are not libvlc or one of its plugins. You cannot include this file +#endif + #ifndef _VLC_STREAM_H #define _VLC_STREAM_H 1 +#include + # ifdef __cplusplus extern "C" { # endif @@ -58,79 +64,13 @@ enum stream_query_e if access unreachable or access control answer */ }; -/** - * stream_t definition - */ -struct stream_t -{ - VLC_COMMON_MEMBERS - - block_t *(*pf_block) ( stream_t *, int i_size ); - int (*pf_read) ( stream_t *, void *p_read, int i_read ); - int (*pf_peek) ( stream_t *, uint8_t **pp_peek, int i_peek ); - int (*pf_control)( stream_t *, int i_query, va_list ); - void (*pf_destroy)( stream_t *); - - stream_sys_t *p_sys; -}; - -/** - * Try to read "i_read" bytes into a buffer pointed by "p_read". If - * "p_read" is NULL then data are skipped instead of read. The return - * value is the real numbers of bytes read/skip. If this value is less - * than i_read that means that it's the end of the stream. - */ -static inline int stream_Read( stream_t *s, void *p_read, int i_read ) -{ - return s->pf_read( s, p_read, i_read ); -} - -/** - * Store in pp_peek a pointer to the next "i_peek" bytes in the stream - * \return The real numbers of valid bytes, if it's less - * or equal to 0, *pp_peek is invalid. - * \note pp_peek is a pointer to internal buffer and it will be invalid as - * soons as other stream_* functions are called. - * \note Due to input limitation, it could be less than i_peek without meaning - * the end of the stream (but only when you have i_peek >= - * p_input->i_bufsize) - */ -static inline int stream_Peek( stream_t *s, uint8_t **pp_peek, int i_peek ) -{ - return s->pf_peek( s, pp_peek, i_peek ); -} - -/** - * Use to control the "stream_t *". Look at #stream_query_e for - * possible "i_query" value and format arguments. Return VLC_SUCCESS - * if ... succeed ;) and VLC_EGENERIC if failed or unimplemented - */ -static inline int stream_vaControl( stream_t *s, int i_query, va_list args ) -{ - return s->pf_control( s, i_query, args ); -} - -/** - * Destroy a stream - */ -static inline void stream_Delete( stream_t *s ) -{ - s->pf_destroy( s ); -} - -static inline int stream_Control( stream_t *s, int i_query, ... ) -{ - va_list args; - int i_result; - - if ( s == NULL ) - return VLC_EGENERIC; - - va_start( args, i_query ); - i_result = s->pf_control( s, i_query, args ); - va_end( args ); - return i_result; -} +VLC_EXPORT( int, stream_Read, ( stream_t *s, void *p_read, int i_read ) ); +VLC_EXPORT( int, stream_Peek, ( stream_t *s, const uint8_t **pp_peek, int i_peek ) ); +VLC_EXPORT( int, stream_vaControl, ( stream_t *s, int i_query, va_list args ) ); +VLC_EXPORT( void, stream_Delete, ( stream_t *s ) ); +VLC_EXPORT( int, stream_Control, ( stream_t *s, int i_query, ... ) ); +VLC_EXPORT( block_t *, stream_Block, ( stream_t *s, int i_size ) ); +VLC_EXPORT( char *, stream_ReadLine, ( stream_t * ) ); /** * Get the current position in a stream @@ -162,43 +102,11 @@ static inline int stream_Seek( stream_t *s, int64_t i_pos ) return stream_Control( s, STREAM_SET_POSITION, i_pos ); } -/** - * Read "i_size" bytes and store them in a block_t. If less than "i_size" - * bytes are available then return what is left and if nothing is availble, - * return NULL. - */ -static inline block_t *stream_Block( stream_t *s, int i_size ) -{ - if( i_size <= 0 ) return NULL; - - if( s->pf_block ) - { - return s->pf_block( s, i_size ); - } - else - { - /* emulate block read */ - block_t *p_bk = block_New( s, i_size ); - if( p_bk ) - { - p_bk->i_buffer = stream_Read( s, p_bk->p_buffer, i_size ); - if( p_bk->i_buffer > 0 ) - { - return p_bk; - } - } - if( p_bk ) block_Release( p_bk ); - return NULL; - } -} - -VLC_EXPORT( char *, stream_ReadLine, ( stream_t * ) ); - /** * Create a special stream and a demuxer, this allows chaining demuxers */ #define stream_DemuxNew( a, b, c ) __stream_DemuxNew( VLC_OBJECT(a), b, c) -VLC_EXPORT( stream_t *,__stream_DemuxNew, ( vlc_object_t *p_obj, char *psz_demux, es_out_t *out ) ); +VLC_EXPORT( stream_t *,__stream_DemuxNew, ( vlc_object_t *p_obj, const char *psz_demux, es_out_t *out ) ); VLC_EXPORT( void, stream_DemuxSend, ( stream_t *s, block_t *p_block ) ); VLC_EXPORT( void, stream_DemuxDelete,( stream_t *s ) ); @@ -216,4 +124,13 @@ VLC_EXPORT( stream_t *,__stream_UrlNew, (vlc_object_t *p_this, const char *psz_u } # endif +# if defined (__PLUGIN__) || defined (__BUILTIN__) + /* FIXME UGLY HACK to keep VLC_OBJECT working */ + /* Maybe we should make VLC_OBJECT a simple cast noawadays... */ +struct stream_t +{ + VLC_COMMON_MEMBERS +}; +# endif + #endif